Weak estimates for the maximal and Riesz potential operators on non-homogeneous central Morrey type spaces in L^1 over metric measure spaces

In a metric measure space (X, d, ), our first aim in this paper is to discuss the weak estimates for the maximal and Riesz potential operators in the non-homogeneous central Morrey type space M 1,q,a (X) (about x 0 X) of all measurable functions f on X satisfying